Finding the Fourth Proportional to 2,136,825.08, 2,949,099.99 and 1,218,843.77
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Solution
The fourth proportional to 2,136,825.08, 2,949,099.99 and 1,218,843.77 is: 1,682,164.90
Step by Step Solution
- Step 1: Write the proportion equation
2,136,825.08 : 2,949,099.99 = 1,218,843.77 : x - Step 2: Convert to fraction form
2,136,825.08/2,949,099.99 = 1,218,843.77/x - Step 3: Cross multiply
2,136,825.08x = 2,949,099.99 × 1,218,843.77 - Step 4: Simplify right side
2,136,825.08x = 3,594,492,135,173.06 - Step 5: Solve for x
x = 3,594,492,135,173.06/2,136,825.08 - Step 6: Final answer
x = 1,682,164.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.